aml audio hw driver: adding support for 88.2khz sampling

88.2khz sampling rate (SACD format) clock parameters were curiously missing. It would blindly clock to 44.1khz with severe time distortion.
Adding PLL clocking parameters for MESON6 and above.
Merge pull request #2 from gdedrouas/upstream

aml audio hw driver: adding support for 88.2khz sampling